Treadmill having angle adjustable function

ABSTRACT

A treadmill includes a main body, and an angle adjusting device mounted on the main body. The main body includes a movable holding bar, and a movable support board. The angle adjusting device includes a bolt rested on the holding bar to move therewith and secured to an end of the support board to move the support board so as to adjust an inclined angle of the support board. Thus, the user only needs to hold and lift the holding bar so as to adjust the angle of the support board, thereby facilitating the user adjusting the angle of the support board.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a treadmill, and more particularly to a treadmill having an angle adjustable function.

2. Description of the Related Art

A conventional treadmill comprises two upright bars each having a substantially E-shaped slot, a support board having a front end adjustably mounted between the two upright bars, and two adjusting pins each mounted on the front end of the support board and each adjustably inserted into and locked in the E-shaped slot of a respective one of the two upright bars so as to adjust the inclined angle of the support board. However, when a user wishes to adjust the inclined angle of the support board, he to exert a larger force to lift the support board and to fix the adjusting pins, thereby causing inconvenience to the user in adjustment of the inclined angle of the support board.

SUMMARY OF THE INVENTION

In accordance with the present invention, there is provided a treadmill, comprising a main body, and an angle adjusting device mounted on the main body. The main body includes a movable holding bar and a movable support board. The angle adjusting device includes a bolt rested on the holding bar to move therewith and secured to an end of the support board to move the support board so as to adjust an inclined angle of the support board.

The primary objective of the present invention is to provide a treadmill having an angle adjustable function to adjust the angle of the belt support board easily and conveniently.

Another objective of the present invention is to provide a treadmill, wherein when the holding bar is moved upward by the user, the bolt is moved upward by the holding bar, so that the upper transverse rod and the front ends of the two side rods are moved upward by the bolt so as to adjust the angle of the support board mounted between the two side rods.

A further objective of the present invention is to provide a treadmill, wherein the user only needs to hold and lift the holding bar so as to adjust the angle of the support board, thereby facilitating the user adjusting the angle of the support board.

Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a treadmill in accordance with the preferred embodiment of the present invention;

FIG. 2 is a locally enlarged exploded perspective view of the treadmill as shown in FIG. 1;

FIG. 3 is a top plan view of the treadmill as shown in FIG. 1;

FIG. 4 is a locally enlarged plan cross-sectional view of the treadmill as shown in FIG. 1;

FIG. 5 is a schematic operational view of the treadmill as shown in FIG. 4;

FIG. 6 is a side plan view of the treadmill as shown in FIG. 1;

FIG. 7 is a schematic operational view of the treadmill as shown in FIG. 6;

FIG. 8 is a schematic operational view of the treadmill as shown in FIG. 7;

FIG. 9 is a side plan view of a treadmill in accordance with another preferred embodiment of the present invention;

FIG. 10 is a locally enlarged view of the treadmill as shown in FIG. 9;

FIG. 11 is a schematic operational view of the treadmill as shown in FIG. 9; and

FIG. 12 is a locally enlarged view of the treadmill as shown in FIG. 11.

DETAILED DESCRIPTION OF THE INVENTION

Referring to the drawings and initially to FIGS. 1-3, a treadmill in accordance with the preferred embodiment of the present invention comprises a main body 1, and an angle adjusting device 2 mounted on the main body 1.

The main body 1 includes two upright bars 11, two bottom rods 12, a holding bar 13, two side rods 14, an upper transverse rod 15, a lower transverse rod 16, a roller 17, a support board 18, and a belt 19. The support board 18 is mounted between the two side rods 14, and the belt 19 is mounted on the support board 18. The upper transverse rod 15 is located between the two side rods 14.

The angle adjusting device 2 is mounted between the holding bar 13 and each of the two bottom rods 12 and includes a support seat 21, an angle adjuster 22, a bolt 23, and a socket 24.

The support seat 21 is a triangular hollow body mounted on a respective one of the bottom rods 12. The support seat 21 has a front side provided with a first cover plate 212 and a rear side provided with a second cover plate 214. The support seat 21 has two side walls each formed with an arc-shaped guide slot 213 to function as an adjusting track of the bolt 23.

The angle adjuster 22 is mounted between the holding bar 13 and the support seat 21 (or a respective one of the bottom rods 12) and includes a first connecting section 225 secured to the holding bar 13 to move therewith, and a second connecting section 226 secured to the support seat 21 and pivotally connected to the first connecting section 225. Preferably, the second connecting section 226 of the angle adjuster 22 is secured to an inner side of the second cover plate 214 of the support seat 21. Thus, the holding bar 13 is pivotally mounted on the bottom rods 12 by the angle adjuster 22.

The angle adjuster 22 has an inside provided with a gear 222, an elastic member 223, and a locking pawl 224. The locking pawl 224 of the angle adjuster 22 is engaged with the gear 222 to adjust the angle between the first connecting section 225 and the second connecting section 226.

The socket 24 is mounted between the two side walls of the support seat 21, and the bolt 23 is extended through the guide slots 213 of the support seat 21, the socket 24 and the front end of each of the two side rods 14 and is screwed into an end of the upper transverse rod 15, so that the upper transverse rod 15 is combined with the two side rods 14 by the bolt 23. At this time, the bolt 23 is located above and rested on the holding bar 13 extended into the support seat 21 as shown in FIG. 2.

In operation, referring to FIGS. 4-7, when the holding bar 13 is moved upward by the user, the bolt 23 is moved upward by the holding bar 13, so that the upper transverse rod 15 and the front ends of the two side rods 14 are moved upward by the bolt 23 so as to adjust the angle of the support board 18 mounted between the two side rods 14. At this time, the first connecting section 225 of the angle adjuster 22 is secured to the holding bar 13 to move therewith, and the locking pawl 224 of the angle adjuster 22 is engaged with the gear 222 to fix the lifting angle of the first connecting section 225 so as to fix and adjust the angle of the support board 18 mounted between the two side rods 14. Alternatively, as shown in FIGS. 4 and 5, when the gear 222 of the angle adjuster 22 is rotated to its end, the elastic member 223 springs the locking pawl 224 away so that the first connecting section 225 is returned to the original position.

As shown in FIGS. 7 and 8, when the bolt 23 is unscrewed from the upper transverse rod 15, the front ends of the two side rods 14 are released from the upper transverse rod 15, so that the two side rods 14 and the support board 18 are lifted toward the upright bars 11 to move upward from the position as shown in FIG. 7 to the position as shown in FIG. 8 to fold the support board 18 so as to reduce the volume of the treadmill when not in use, thereby facilitating storage and transportation of the treadmill. At this time, the support board 18 is perpendicular to the bottom rods 12.

Referring to FIGS. 9-12, the angle adjuster 22 is mounted between the lower transverse rod 16 and a respective one of the two side rods 14, wherein the first connecting section 225 is secured to the lower transverse rod 16 to move therewith, and the second connecting section 226 is secured to a respective one of the two side rods 14. Thus, when the lower transverse rod 16 is moved inward, the rear ends of the two side rods 14 are moved upward so as to adjust the angle of the support board 18 mounted between the two side rods 14.

Accordingly, when the holding bar 13 is moved upward by the user, the bolt 23 is moved upward by the holding bar 13, so that the upper transverse rod 15 and the front ends of the two side rods 14 are moved upward by the bolt 23 so as to adjust the angle of the support board 18 mounted between the two side rods 14. In addition, the user only needs to hold and lift the holding bar 13 so as to adjust the angle of the support board, thereby facilitating the user adjusting the angle of the support board.

Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention. 

1. A treadmill, comprising a main body, and an angle adjusting device mounted on the main body, wherein: the main body includes a movable holding bar and a movable support board; the angle adjusting device includes a bolt rested on the holding bar to move therewith and secured to an end of the support board to move the support board so as to adjust an inclined angle of the support board.
 2. The treadmill in accordance with claim 1, wherein the angle adjusting device further includes: a support seat mounted on the main body; an angle adjuster mounted between the holding bar and the support seat.
 3. The treadmill in accordance with claim 2, wherein the angle adjuster includes a first connecting section secured to the holding bar to move therewith, and a second connecting section secured to the support seat and pivotally connected to the first connecting section.
 4. The treadmill in accordance with claim 2, wherein the support seat is a triangular hollow body.
 5. The treadmill in accordance with claim 3, wherein the support seat has a front side provided with a first cover plate and a rear side provided with a second cover plate, and the second connecting section of the angle adjuster is secured to an inner side of the second cover plate of the support seat.
 6. The treadmill in accordance with claim 2, wherein the bolt is located above and rested on the holding bar extended into the support seat.
 7. The treadmill in accordance with claim 2, wherein the main body further includes two side rods mounted on the support board, and an upper transverse rod located between the two side rods, the angle adjusting device further includes a socket mounted in the support seat, and the bolt is extended through the support seat, the socket and an end of each of the two side rods and is screwed into an end of the upper transverse rod, so that the upper transverse rod is combined with the two side rods by the bolt.
 8. The treadmill in accordance with claim 7, wherein the support seat has two side walls each formed with an arc-shaped guide slot to function as an adjusting track of the bolt, and the bolt is extended through the guide slots of the support seat.
 9. The treadmill in accordance with claim 1, wherein when the bolt is unscrewed from the upper transverse rod, the ends of the two side rods are released from the upper transverse rod, so that the two side rods and the support board are lifted to fold the support board. 